In my analysis the Palestinians now have only one option.
For starters it requires the PLO to recognize and declare that the two-state solution is dead (not least because no Israeli prime minister is going to trigger a Jewish civil war in order to end the occupation of the West Bank including East Jerusalem).
The next step should be winding up the Palestine Authority and handing total responsibility for the occupation back to Israel.
That would open the door to what I believe to be the only viable strategy for the Palestinians if they are ever to obtain justice.
With the two-state solution not only dead but formally buried, they could then campaign, with growing global support, for equal rights and security for all in one state (all of pre-1967 Israel plus all of the West Bank plus the Gaza Strip).
In one or two decades at the most, because the Palestinians would outnumber the Jews, one state would mean the end of Zionism, but it would also open the door to real security for the one state’s Jews.